• Sunil kr Bhatia

      Articles written in Pramana – Journal of Physics

    • Realization of a unique time evolution unitary operator in Klein Gordon theory

      T S Balasubranian Sunil kr Bhatia

      More Details Abstract Fulltext PDF

      The scattering theory for the Klein Gordon equation, with time-dependent potential and in a non-static space-time, is considered. Using the Klein Gordon equation formulated in the Hubert spaceL2(R3) and the Einstein’s relativistic equation in the spaceL2(R3, dx) and establishing the equivalence of the vacuum states of their linearized forms in the Hubert spaceL2(R3) with the help of unique symmetric symplectic operator, the time evolution unitary operatorU(t) has been fixed for the Klein Gordon equation, incorporating either the positive or negative frequencies, in the infinite dimensional Hubert spaceL2(R3).

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